74584648546 has 16 divisors (see below), whose sum is σ = 112086150840. Its totient is φ = 37222635520.

The previous prime is 74584648517. The next prime is 74584648549. The reversal of 74584648546 is 64584648547.

It can be written as a sum of positive squares in 4 ways, for example, as 74024805625 + 559842921 = 272075^2 + 23661^2 .

It is not an unprimeable number, because it can be changed into a prime (74584648549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5414700 + ... + 5428456.

Almost surely, 2^74584648546 is an apocalyptic number.

74584648546 is a deficient number, since it is larger than the sum of its proper divisors (37501502294).

74584648546 is a wasteful number, since it uses less digits than its factorization.

74584648546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18629.

The product of its digits is 103219200, while the sum is 61.

Subtracting from 74584648546 its reverse (64584648547), we obtain a palindrome (9999999999).

The spelling of 74584648546 in words is "seventy-four billion, five hundred eighty-four million, six hundred forty-eight thousand, five hundred forty-six".